危险区域批准 北美加拿大标准协会(CSA/US/C)和欧洲LCIE认证的危险区的多项审批。 北美 Class I, Div I, Groups A, B, C, and D;,Class II, Div I, Groups E, F, and G;,Class III, Div I. Ex ia IIC,AEx ia IIC,T4 @ Ta = 100oC When installed with an approved zener barrier per BN drawing 168077. Ex nL IIC; Class I, Zone 2,Class I, Div 2, Groups A, B, C, D. When installed per BN drawing 168077